Twenty two
400 / 7 = 57, so there are 57 multiples of 7 under 400.
57 inches
About 1.7 meters.
4' 9" tall.
a porcipine is 20-30cm tall
The empire state building is 102 floors tall.
57 grams. 57 Kg is just under 9 stones !
In New Jersey, children under 8 years old or under 57 inches tall must ride in a federally approved child safety seat in the rear of the vehicle. It is recommended that children under 13 years old sit in the back seat.
12 inches in a foot -- so you are 4 feet and 9 inches.
The Niagara Gorge is 57 meters tall at the Horseshoe Falls.
57 inches. 4' = 48" 48+9= 57. Q.E.D.
Infinitely many: 57*1 57*2 57*2.1 57*2.2 and so on, and on, and on.